Originally Posted by
Moriens
This is common with new properties that are “coded wrong.”
A secure message to AmEx through their website usually fixes it that time for you, and within a month or two for all guests at the property.
I suspect the phone call and starting the investigation will do the same, then. I've also notified my Starwood Ambassador just as an FYI in case SPG needs to confirm to Amex that it is indeed a participating property.
Thanks.